EP0803117A4 - - Google Patents

Info

Publication number
EP0803117A4
EP0803117A4 EP93920386A EP93920386A EP0803117A4 EP 0803117 A4 EP0803117 A4 EP 0803117A4 EP 93920386 A EP93920386 A EP 93920386A EP 93920386 A EP93920386 A EP 93920386A EP 0803117 A4 EP0803117 A4 EP 0803117A4
Authority
EP
European Patent Office
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93920386A
Other versions
EP0803117A1 (de
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AudioCodes San Diego Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of EP0803117A1 publication Critical patent/EP0803117A1/de
Publication of EP0803117A4 publication Critical patent/EP0803117A4/xx
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP93920386A 1993-08-27 1993-08-27 Adaptiver sprachkodierer mit code-angeregter linearer praediktion Withdrawn EP0803117A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1993/008095 WO1995006310A1 (en) 1993-08-27 1993-08-27 Adaptive speech coder having code excited linear prediction

Publications (2)

Publication Number Publication Date
EP0803117A1 EP0803117A1 (de) 1997-10-29
EP0803117A4 true EP0803117A4 (de) 1997-10-29

Family

ID=22236901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93920386A Withdrawn EP0803117A1 (de) 1993-08-27 1993-08-27 Adaptiver sprachkodierer mit code-angeregter linearer praediktion

Country Status (4)

Country Link
EP (1) EP0803117A1 (de)
JP (1) JPH09506182A (de)
AU (1) AU5095193A (de)
WO (1) WO1995006310A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999041737A1 (en) * 1998-02-17 1999-08-19 Motorola Inc. Method and apparatus for high speed determination of an optimum vector in a fixed codebook
CN101609677B (zh) * 2009-03-13 2012-01-04 华为技术有限公司 一种预处理方法、装置及编码设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462558A2 (de) * 1990-06-18 1991-12-27 Fujitsu Limited Sprachkodiersystem
US5457783A (en) * 1992-08-07 1995-10-10 Pacific Communication Sciences, Inc. Adaptive speech coder having code excited linear prediction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02250100A (ja) * 1989-03-24 1990-10-05 Mitsubishi Electric Corp 音声符合化装置
JPH02272500A (ja) * 1989-04-13 1990-11-07 Fujitsu Ltd コード駆動音声符号化方式
JPH0398318A (ja) * 1989-09-11 1991-04-23 Fujitsu Ltd 音声符号化方式

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462558A2 (de) * 1990-06-18 1991-12-27 Fujitsu Limited Sprachkodiersystem
US5457783A (en) * 1992-08-07 1995-10-10 Pacific Communication Sciences, Inc. Adaptive speech coder having code excited linear prediction

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
GRUET C ET AL: "EXPERIMENTS WITH A REGULAR PULSE CELP CODER FOR THE PAN EUROPEAN HALF RATE CHANNEL*", SPEECH PROCESSING 1, TORONTO, MAY 14 - 17, 1991, vol. 1, 14 May 1991 (1991-05-14), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 617 - 620, XP000245304 *
HERNANDEZ-GOMEZ L A: "REAL-TIME IMPLEMENTATION AND EVALUATION OF VARIABLE RATE CELP CODERS", SPEECH PROCESSING 1, TORONTO, MAY 14 - 17, 1991, vol. 1, 14 May 1991 (1991-05-14), INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, pages 585 - 588, XP000245298 *
SALAMI R A: "14 BINARY PULSE EXCITATION: A NOVEL APPROACH TO LOW COMPLEXITY CELP CODING", ADVANCES IN SPEECH CODING, VANCOUVER, SEPT. 5 - 8, 1989, no. -, 1 January 1991 (1991-01-01), ATAL B S;CUPERMAN V; GERSHO A, pages 145 - 156, XP000419270 *
SCHROEDER M R ET AL: "New permutation codes using Hadamard unscrambling", IEEE TRANSACTIONS ON INFORMATION THEORY, JAN. 1987, USA, vol. IT-33, no. 1, ISSN 0018-9448, pages 144 - 146, XP002038982 *
See also references of WO9506310A1 *

Also Published As

Publication number Publication date
EP0803117A1 (de) 1997-10-29
AU5095193A (en) 1995-03-21
WO1995006310A1 (en) 1995-03-02
JPH09506182A (ja) 1997-06-17

Similar Documents

Publication Publication Date Title
DK0605845T3 (de)
DK0649622T3 (de)
TW242566B (de)
DK0618680T3 (de)
EP0674978A4 (de)
DK76793D0 (de)
DK63994A (de)
EP0647920A3 (de)
DK69093D0 (de)
DK24593D0 (de)
IN178264B (de)
IN186840B (de)
ECSDI930142S (de)
ECSDI930105S (de)
DK128793D0 (de)
ECSDI930138S (de)
IN180630B (de)
ECSDI930155S (de)
ECSDI930118S (de)
ECSDI930112S (de)
IN182025B (de)
ECSDI930157S (de)
IN178265B (de)
ECSDI930096S (de)
ECSDI930173S (de)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19960227

A4 Supplementary search report drawn up and despatched

Effective date: 19970905

AK Designated contracting states

Kind code of ref document: A4

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NUERA COMMUNICATIONS INC

17Q First examination report despatched

Effective date: 19981123

RIC1 Information provided on ipc code assigned before grant

Free format text: 7G 10L 19/12 A

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RIC1 Information provided on ipc code assigned before grant

Free format text: 7G 10L 19/12 A

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20011201